I agree but I’ll note Common is saying this. I don’t see LORs listed on Furman’s website, even in FAQs. Centre says one.
I agree it won’t hurt but OP asked if it’s overkill - and yes it is.
I don’t see how the GC would see them if they are uploaded from the teacher to common or am I missing something ?
But if Common will take and they submit, likely a non issue as you note, especially for a strong student who each school will zero in on in hopes of securing their attendance